feat: module example

src/lib.rs

@@ -1 +1 @@
-pub fn foo() {}
+pub mod restaurant;

src/main.rs

@@ -1,3 +1,7 @@
+use rust_template::restaurant;
+
 fn main() -> Result<(), Box<dyn std::error::Error>> {
+    println!("Welcome at {}", restaurant::display_name());
+    restaurant::foh::process_visit();
     Ok(())
 }

src/restaurant/boh/mod.rs

@@ -0,0 +1,9 @@
+pub fn fix_incorrect_order() {
+    println!("Fix incorrect order:");
+    cook_order();
+    super::deliver_order();
+}
+
+pub fn cook_order() {
+    println!("Cook order");
+}

src/restaurant/foh/hosting/mod.rs

@@ -0,0 +1,9 @@
+pub fn add_to_wait_list() {
+    println!("Add to wait list");
+}
+
+pub fn seat_at_table() {
+    println!("Seat at table");
+}
+
+pub fn welcome() {}

src/restaurant/foh/mod.rs

@@ -0,0 +1,14 @@
+pub mod hosting;
+pub mod serving;
+
+pub fn process_visit() {
+    hosting::welcome();
+    hosting::add_to_wait_list();
+    hosting::seat_at_table();
+    serving::take_order();
+    serving::serve_order();
+    super::boh::cook_order();
+    serving::take_complaint();
+    super::boh::fix_incorrect_order();
+    serving::take_payment();
+}

src/restaurant/foh/serving/mod.rs

@@ -0,0 +1,17 @@
+use crate::restaurant;
+
+pub fn take_order() {
+    println!("Take order");
+}
+
+pub fn serve_order() {
+    println!("Serve order");
+}
+
+pub fn take_payment() {
+    println!("Thanks for your visit at {}", restaurant::display_name());
+}
+
+pub fn take_complaint() {
+    println!("Take complaint");
+}

src/restaurant/mod.rs

@@ -0,0 +1,10 @@
+pub fn display_name() -> &'static str {
+    "Greek restaurant"
+}
+
+fn deliver_order() {
+    println!("Deliver order");
+}
+
+pub mod boh;
+pub mod foh;